KR20140043656A - Radio communication antenna and radio communication device - Google Patents

Radio communication antenna and radio communication device Download PDF

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Publication number
KR20140043656A
KR20140043656A KR1020130028125A KR20130028125A KR20140043656A KR 20140043656 A KR20140043656 A KR 20140043656A KR 1020130028125 A KR1020130028125 A KR 1020130028125A KR 20130028125 A KR20130028125 A KR 20130028125A KR 20140043656 A KR20140043656 A KR 20140043656A
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KR
South Korea
Prior art keywords
conductive lines
wireless communication
resonant frequency
substrate
antenna
Prior art date
Application number
KR1020130028125A
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Korean (ko)
Inventor
이상석
안성덕
구재본
Original Assignee
한국전자통신연구원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 한국전자통신연구원 filed Critical 한국전자통신연구원
Priority to US13/929,735 priority Critical patent/US9059512B2/en
Publication of KR20140043656A publication Critical patent/KR20140043656A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/378—Combination of fed elements with parasitic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H01Q5/48—Combinations of two or more dipole type antennas

Abstract

The present invention relates to a radio communication antenna and a radio communication device including the same. The radio communication antenna of the present invention includes: first conductive wires extending in opposite directions with respect to a first direction on a substrate to form a dipole antenna; second conductive wires separated from the first conductive wires to be parallel with the first conductive wires; and stubs connected between the first conductive wires and the second conductive wires in a second direction intersecting with the first direction.

Description

RADIO COMMUNICATION ANTENNA AND RADIO COMMUNICATION DEVICE

The present invention relates to a wireless communication antenna and a wireless communication device, and more particularly to a wireless communication device including the dipole antenna and the dipole antenna.

Wireless communication performs communication by propagating a signal into the air and receiving a signal from the air without a separate medium for propagating a signal such as a conductive line or an optical fiber. Wireless communication technology: AM (Amplitude Modulation), FM (Frequency Modulation), PM (Phase Modulation), ASK (Amplitude Shift Keying), FSK (Frequency Shift Keying), PSK (Phase Shift Keying), CDMA (Code Division Multiple Access) Or Orthogonal Frequency Division Multiplexing (OFDM).

In order to propagate signals to and receive signals from the atmosphere, an antenna is required. The antenna has a structure based on the wavelength of the communication frequency. An antenna that acts like a dipole with polarity symmetrical with respect to the center of the antenna may be referred to as a dipole antenna. The dipole antenna is used to adjust the length of the dipole to adjust the center frequency by the length of the wavelength. In recent years, wireless communication systems have tended to use various types of communication networks, such as Bluetooth and Wi-Fi, in portable mobile communication terminals using local area networks. In order to use these various types of communication networks, it is necessary to use a plurality of antennas or to use an antenna having broadband characteristics. Conventional dipole antennas are simple in the construction method, but have difficulty in implementing broadband by extending the bandwidth.

An object of the present invention is to provide a wireless communication antenna and a wireless communication device for implementing broadband wireless communication.

According to an aspect of the present invention, there is provided a wireless communication antenna including: first conductive lines extending in opposite directions with respect to a first direction on a substrate to form a dipole antenna; Second conductive lines spaced apart in parallel to the first conductive lines, respectively; And stubs connected between the second conductive lines and the first conductive lines in a second direction crossing the first direction.

According to an embodiment of the present disclosure, the first conductive lines may include: a plurality of vertical conductive lines vertically connected to the substrate; And a plurality of horizontal conductive lines connected to the vertical conductors and extending horizontally to the substrate.

According to another embodiment of the present disclosure, the second conductive lines may have the same length and width as the plurality of horizontal conductive lines, respectively.

According to an embodiment of the present disclosure, the stubs may be connected between the horizontal conductive lines and the second conductive lines, and may be arranged to be biased toward one side of the horizontal conductive lines and the second conductive lines, respectively.

According to another embodiment of the present disclosure, the horizontal conductive lines and the second conductive lines may have a first resonance frequency of a main frequency band.

According to an embodiment of the present disclosure, the stubs may have a second resonance frequency of an auxiliary frequency band lower than the main frequency band.

According to another embodiment of the present invention, the second resonant frequency may overlap the first resonant frequency.

According to an embodiment of the present disclosure, the second resonant frequency may vary according to the length and width of the stub.

According to another embodiment of the present invention, the substrate may include plastic.

In accordance with another aspect of the present invention, a wireless communication device includes a wireless communication antenna; A modem connected to the wireless communication antenna and performing modulation and demodulation; Memory; User interface; And a processor for controlling the modem, memory, and user interface. The wireless communication antenna may include first conductive lines extending in opposite directions with respect to a first direction on a substrate to form a dipole antenna, second conductive lines spaced apart from each other in parallel to the first conductive lines, and Stubs connected between the second conductive lines and the first conductive lines in a second direction crossing the first direction may be provided.

According to an embodiment of the present invention, broadband wireless communication may be performed using the wireless communication antenna.

A wireless communication antenna according to an embodiment of the present disclosure may include first conductive lines, second conductive lines, and stubs on a substrate. The first conductive lines may include vertical conductive lines connected to the substrate and horizontal conductive lines connected to the vertical conductive lines. The second conductive lines may be parallel to the horizontal conductive lines, and may have the same length and width as the horizontal conductive lines. The second conductive lines and the horizontal conductive lines may have a first resonant frequency of the main pole frequency band. The stubs may connect the second conductive lines and the horizontal conductive lines. The stubs may have a second resonant frequency in an auxiliary pole frequency band lower than the first resonant frequency. The first resonant frequency and the second resonant frequency may overlap.

Therefore, the wireless communication antenna according to the embodiment of the present invention can implement broadband wireless communication in which the first resonant frequency and the second resonant frequency overlap.

1 is a perspective view showing a wireless communication antenna according to an embodiment of the present invention.
2 shows a first example of a communication frequency of the wireless communication antenna of FIG. 1.
3 shows a second example of a communication frequency band of the wireless communication antenna of FIG. 1.
4 is a flowchart illustrating a method of manufacturing a wireless communication antenna.
5 is a block diagram illustrating a wireless communication device according to an exemplary embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the technical idea of the present invention. .

1 is a diagram illustrating a general wireless communication antenna 100.

Referring to FIG. 1, a general wireless communication antenna 100 may include a substrate 10 and first conductive lines 20. The substrate 10 may be formed of a plastic material. The first conductive lines 20 may include a plurality of vertical conductive lines 22 and horizontal conductive lines 24, respectively. The vertical conductive lines 22 and the horizontal conductive lines 24 may be symmetrically arranged to constitute a dipole antenna.

FIG. 2 is a diagram illustrating a communication frequency of the general wireless communication antenna of FIG. 1.

1 and 2, the general wireless communication antenna 100 may have a first resonant frequency R1 of about 0.4 GHz band from 2.2 GHz to 2.6 GHz. The first resonant frequency R1 is communicated by the dielectric constant, thickness of the substrate 10, the material of the first conductive lines 20, the electrical conductivity, the thickness, the width, the length, or the distance between the first conductive lines 20. The frequency can be determined. The first resonant frequency R1 may be represented by a narrow band.

Thus, a general wireless communication antenna may have a narrow band first resonant frequency R1.

3 is a diagram illustrating a wireless communication antenna according to an exemplary embodiment of the present invention. 4 is a graph showing a communication frequency of the wireless communication antenna 100 of the present invention of FIG.

3 and 4, the wireless communication antenna 100 of the present invention includes a substrate 10, first conductive lines 20, second conductive lines 30, and stubs 40. can do. The substrate 10 may include an insulating material such as plastic.

The first conductive lines 20 may include symmetrical vertical conductive lines 22 and horizontal conductive lines 24, respectively. The vertical conductive lines 22 may be connected in a second direction perpendicular to the substrate 10. The horizontal conductive lines 24 may extend in a first direction parallel to the substrate 10 at the ends of the vertical conductive lines 22.

The second conductive lines 30 may be parallel to the horizontal conductive lines 24 and have the same length and width. The second conductive lines 30 and the horizontal conductive lines 24 may have a first resonant frequency R1 in a main polar frequency (MP) band. As described above, the first resonant frequency R1 may be represented by a narrow band.

The stubs 40 may have a second resonant frequency R2 of an auxiliary polar frequency (AP) band. The second resonant frequency R2 may be lower than the first resonant frequency R1. In addition, the stubs 40 move the second resonance frequency R2 of the auxiliary pole frequency band to the first resonance frequency R1 of the main pole frequency band, so that the second resonance is performed at the first resonance frequency R1. Some of the frequencies R2 can be superimposed. The second resonant frequency R2 may be varied by the length, thickness, width, and spacing of the stubs 40. The stubs 40 may be arranged to be biased in a direction parallel to the substrate. The subs 40 may be asymmetrically disposed.

The first resonant frequency R1 and the second resonant frequency R2 may be wideband resonant frequencies. For example, the broadband resonant frequency may appear as a broadband of about 1.2 GHz from about 2.2 GHz to about 3.4 GHz. The wideband resonant frequency may enable wireless communication in a band wider than a typical narrowband resonant frequency.

Thus, the wireless communication antenna 100 according to the embodiment of the present invention can implement broadband wireless communication. The wireless communication antenna 100 may support Bluetooth and Wi-Fi communication having a wideband resonance frequency.

5 is a flowchart illustrating a method of manufacturing the wireless communication antenna 100.

3 and 5, the first conductive lines 20 are symmetrically formed on the substrate 10 (S10). The first conductive lines 20 may be formed by a metal deposition process, a photolithography process, and an etching process.

Next, second conductive lines 30 parallel to the horizontal conductive lines 24 of the first conductive lines 20 are formed (S20). The second conductive lines 30 may be made of a metal having the same material as the first conductive lines 20. Similarly, the second conductive lines 30 may be formed by a metal deposition process, a photolithography process, and an etching process.

Then, stubs 40 are formed between the second conductive lines 30 and the horizontal conductive lines 24. The subs 40 may be formed by a metal deposition process, a photolithography process, and an etching process. In addition, the stubs 40 may be formed before the second conductive lines 30 or may be formed simultaneously with the second conductive lines 30.

The present invention is not limited thereto and may be variously modified. For example, the first conductive lines 20, the second conductive lines 30, and the stubs 40 may be formed on the substrate 10 by one metal deposition process, a photolithography process, and an etching process, respectively. Can be.

6 is a block diagram illustrating a wireless communication device 200 according to an embodiment of the present invention. Referring to FIG. 6, the wireless communication device 200 includes a processor 210, a memory 220, an interface 230, a modem 240, a bus 250, and a wireless communication antenna 100.

The processor 210 may control overall operations of the wireless communication device 200. The processor 210 may control the wireless communication device 200 to perform wireless communication.

The memory 220 may be an operating memory of the wireless communication device 200. The memory 220 may store data to be processed by the processor 210, data processed by the processor 210, data to be modulated by the modem 240, and data demodulated by the modem 240. The memory 220 may be volatile memory such as static RAM (SRAM), dynamic RAM (DRAM), or synchronous DRAM (SDRAM), or read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), or electrically EEPROM (EEPROM). Non-volatile memory, such as Erasable and Programmable ROM, flash memory, phase-change RAM (PRAM), magnetic RAM (MRAM), resistive RAM (RRAM), ferroelectric RAM (FRAM), and the like.

The interface 230 may exchange signals with the outside. For example, the interface 230 may receive data to be transmitted through the wireless communication from the outside, and output the data received through the wireless communication to the outside. The interface 230 may be a communication port for exchanging data with an external device. The interface 230 may include a user input interface such as a keyboard, a keypad, a touch pad, a button, a mouse, a camera, a microphone, and the like, which receives data from a user. The interface 230 may include a user output interface such as a speaker, a monitor, a lamp, a liquid crystal display, and the like that outputs data to the user.

The modem 240 may modulate data to be transmitted via wireless communication and demodulate data received via wireless communication. Modem 240 includes AM (Amplitude Modulation), FM (Frequency Modulation), PM (Phase Modulation), ASK (Amplitude Shift Keying), FSK (Frequency Shift Keying), PSK (Phase Shift Keying), CDMA (Code Division Multiple Access) Modulation and demodulation may be performed according to a communication technique such as OFDM, orthogonal frequency division multiplexing (OFDM).

The modem 240 may perform wireless communication according to various wireless communication standards such as Bluetooth, Wi-Fi, and the like.

The bus 250 provides a channel between the processor 210, the memory 220, the interface 230, and the modem 240.

The wireless communication antenna 100 is connected to the modem 240. The wireless communication antenna 100 may convert an electric signal transmitted from the modem 240 into a wireless signal to propagate to the air. The wireless communication antenna 100 may convert a wireless signal propagated in the air into an electrical signal and transmit the converted electrical signal to the modem 240.

As described with reference to FIG. 3, the wireless communication antenna 100 is parallel to the substrate 10, the first conductive lines 20 on the substrate 10, and the horizontal conductive lines 24 of the first conductive lines. The second conductive lines 30 and stubs 40 connected to the second conductive lines 30 and the horizontal conductive lines 24 may be included.

As described with reference to FIGS. 4 and 6, the wireless communication communications 200 may have a wideband resonant frequency. The wireless communication device 200 may perform wireless communication according to two communication standards using different frequency bands such as Bluetooth and Wi-Fi.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by the claims equivalent to the claims of the present invention as well as the claims of the following.

10 substrate 20 first conductive lines
22: vertical challenge lines 24: horizontal challenge lines
30: second challenge lines 40: stubs
100: wireless communication antenna 200: wireless communication device
210: processor 220: memory
230: interface 240: modem

Claims (11)

First conductive lines extending in opposite directions to the first direction on the substrate to form a dipole antenna;
Second conductive lines spaced apart in parallel to the first conductive lines, respectively; And
And stubs connected between the second conductive lines and the first conductive lines in a second direction crossing the first direction. The method according to claim 1,
The first challenge lines,
A plurality of vertical conductive lines vertically connected to the substrate; And
And a plurality of horizontal conductive lines connected to the vertical leads and extending horizontally to the substrate. 3. The method of claim 2,
And the second conductive lines have the same length and width as the plurality of horizontal conductive lines, respectively. The method of claim 3, wherein
The stubs are connected between the horizontal conductive lines and the second conductive lines, and are arranged to be biased toward one side of the horizontal conductive lines and the second conductive lines, respectively. The method according to claim 1,
And the horizontal conductive lines and the second conductive lines have a first resonant frequency in a main frequency band. 6. The method of claim 5,
And the stubs have a second resonant frequency in an auxiliary frequency band lower than the main frequency band. The method according to claim 6,
And the second resonant frequency overlaps the first resonant frequency. The method according to claim 6,
And the second resonant frequency varies depending on the length and width of the stub. The method according to claim 1,
And the substrate comprises plastic. Wireless communication antennas;
A modem connected to the wireless communication antenna and performing modulation and demodulation;
Memory;
User interface; And
A processor for controlling the modem, memory, and user interface,
The wireless communication antenna may include first conductive lines extending in opposite directions with respect to a first direction on a substrate to form a dipole antenna, second conductive lines spaced apart in parallel to the first conductive lines, respectively; And a stub connected between the conductive lines and the first conductive lines in a second direction crossing the first direction. 11. The method of claim 10,
A wireless communication device for performing broadband wireless communication using the wireless communication antenna.
KR1020130028125A 2012-09-24 2013-03-15 Radio communication antenna and radio communication device KR20140043656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/929,735 US9059512B2 (en) 2012-09-24 2013-06-27 Radio communication antenna and radio communication device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20120105916 2012-09-24
KR1020120105916 2012-09-24

Publications (1)

Publication Number Publication Date
KR20140043656A true KR20140043656A (en) 2014-04-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130028125A KR20140043656A (en) 2012-09-24 2013-03-15 Radio communication antenna and radio communication device

Country Status (1)

Country Link
KR (1) KR20140043656A (en)

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